qmovie.cpp

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7-
8-
9class QFrameInfo-
10{-
11public:-
12 QPixmap pixmap;-
13 int delay;-
14 bool endMark;-
15 inline QFrameInfo(bool endMark)-
16 : pixmap(QPixmap()), delay(-1), endMark(endMark)-
17 { }-
18-
19 inline QFrameInfo()-
20 : pixmap(QPixmap()), delay(-1), endMark(false)-
21 { }-
22-
23 inline QFrameInfo(const QPixmap &pixmap, int delay)-
24 : pixmap(pixmap), delay(delay), endMark(false)-
25 { }-
26-
27 inline bool isValid()-
28 {-
29 return endMark || !(pixmap.isNull() && (delay == -1));-
30 }-
31-
32 inline bool isEndMarker()-
33 { return endMark; }-
34-
35 static inline QFrameInfo endMarker()-
36 { return QFrameInfo(true); }-
37};-
38-
39class QMoviePrivate : public QObjectPrivate-
40{-
41 inline QMovie* q_func() { return static_cast<QMovie *>(q_ptr); } inline const QMovie* q_func() const { return static_cast<const QMovie *>(q_ptr); } friend class QMovie;-
42-
43public:-
44 QMoviePrivate(QMovie *qq);-
45 bool isDone();-
46 bool next();-
47 int speedAdjustedDelay(int delay) const;-
48 bool isValid() const;-
49 bool jumpToFrame(int frameNumber);-
50 int frameCount() const;-
51 bool jumpToNextFrame();-
52 QFrameInfo infoForFrame(int frameNumber);-
53 void reset();-
54-
55 inline void enterState(QMovie::MovieState newState) {-
56 movieState = newState;-
57 q_func()->stateChanged(newState);-
58 }-
59-
60-
61 void _q_loadNextFrame();-
62 void _q_loadNextFrame(bool starting);-
63-
64 QImageReader *reader;-
65 int speed;-
66 QMovie::MovieState movieState;-
67 QRect frameRect;-
68 QPixmap currentPixmap;-
69 int currentFrameNumber;-
70 int nextFrameNumber;-
71 int greatestFrameNumber;-
72 int nextDelay;-
73 int playCounter;-
74 qint64 initialDevicePos;-
75 QMovie::CacheMode cacheMode;-
76 bool haveReadAll;-
77 bool isFirstIteration;-
78 QMap<int, QFrameInfo> frameMap;-
79 QString absoluteFilePath;-
80-
81 QTimer nextImageTimer;-
82};-
83-
84-
85-
86QMoviePrivate::QMoviePrivate(QMovie *qq)-
87 : reader(0), speed(100), movieState(QMovie::NotRunning),-
88 currentFrameNumber(-1), nextFrameNumber(0), greatestFrameNumber(-1),-
89 nextDelay(0), playCounter(-1),-
90 cacheMode(QMovie::CacheNone), haveReadAll(false), isFirstIteration(true)-
91{-
92 q_ptr = qq;-
93 nextImageTimer.setSingleShot(true);-
94}-
95-
96-
97-
98void QMoviePrivate::reset()-
99{-
100 nextImageTimer.stop();-
101 if (reader->device())-
102 initialDevicePos = reader->device()->pos();-
103 currentFrameNumber = -1;-
104 nextFrameNumber = 0;-
105 greatestFrameNumber = -1;-
106 nextDelay = 0;-
107 playCounter = -1;-
108 haveReadAll = false;-
109 isFirstIteration = true;-
110 frameMap.clear();-
111}-
112-
113-
114-
115bool QMoviePrivate::isDone()-
116{-
117 return (playCounter == 0);-
118}-
119int QMoviePrivate::speedAdjustedDelay(int delay) const-
120{-
121 return int( (qint64(delay) * qint64(100) ) / qint64(speed) );-
122}-
123QFrameInfo QMoviePrivate::infoForFrame(int frameNumber)-
124{-
125 if (frameNumber < 0)-
126 return QFrameInfo();-
127-
128 if (haveReadAll && (frameNumber > greatestFrameNumber)) {-
129 if (frameNumber == greatestFrameNumber+1)-
130 return QFrameInfo::endMarker();-
131 return QFrameInfo();-
132 }-
133-
134 if (cacheMode == QMovie::CacheNone) {-
135 if (frameNumber != currentFrameNumber+1) {-
136-
137 if (!reader->jumpToImage(frameNumber)) {-
138 if (frameNumber == 0) {-
139-
140-
141 if (reader->device()->isSequential())-
142 return QFrameInfo();-
143 QString fileName = reader->fileName();-
144 QByteArray format = reader->format();-
145 QIODevice *device = reader->device();-
146 QColor bgColor = reader->backgroundColor();-
147 QSize scaledSize = reader->scaledSize();-
148 delete reader;-
149 if (fileName.isEmpty())-
150 reader = new QImageReader(device, format);-
151 else-
152 reader = new QImageReader(absoluteFilePath, format);-
153 (void)reader->canRead();-
154 reader->device()->seek(initialDevicePos);-
155 reader->setBackgroundColor(bgColor);-
156 reader->setScaledSize(scaledSize);-
157 } else {-
158 return QFrameInfo();-
159 }-
160 }-
161 }-
162 if (reader->canRead()) {-
163-
164 QImage anImage = reader->read();-
165 if (anImage.isNull()) {-
166-
167 return QFrameInfo();-
168 }-
169 if (frameNumber > greatestFrameNumber)-
170 greatestFrameNumber = frameNumber;-
171 QPixmap aPixmap = QPixmap::fromImage(anImage);-
172 int aDelay = reader->nextImageDelay();-
173 return QFrameInfo(aPixmap, aDelay);-
174 } else if (frameNumber != 0) {-
175-
176 haveReadAll = true;-
177 return QFrameInfo::endMarker();-
178 } else {-
179-
180 haveReadAll = true;-
181 return QFrameInfo();-
182 }-
183 }-
184-
185-
186 if (frameNumber > greatestFrameNumber) {-
187-
188 for (int i = greatestFrameNumber + 1; i <= frameNumber; ++i) {-
189 if (reader->canRead()) {-
190-
191 QImage anImage = reader->read();-
192 if (anImage.isNull()) {-
193-
194 return QFrameInfo();-
195 }-
196 greatestFrameNumber = i;-
197 QPixmap aPixmap = QPixmap::fromImage(anImage);-
198 int aDelay = reader->nextImageDelay();-
199 QFrameInfo info(aPixmap, aDelay);-
200-
201 frameMap.insert(i, info);-
202 if (i == frameNumber) {-
203 return info;-
204 }-
205 } else {-
206-
207 haveReadAll = true;-
208 return QFrameInfo::endMarker();-
209 }-
210 }-
211 }-
212-
213 return frameMap.value(frameNumber);-
214}-
215bool QMoviePrivate::next()-
216{-
217 QTime time;-
218 time.start();-
219 QFrameInfo info = infoForFrame(nextFrameNumber);-
220 if (!info.isValid())-
221 return false;-
222 if (info.isEndMarker()) {-
223-
224 if (isFirstIteration) {-
225 if (nextFrameNumber == 0) {-
226-
227 return false;-
228 }-
229-
230 playCounter = reader->loopCount();-
231 isFirstIteration = false;-
232 }-
233-
234 if (playCounter != 0) {-
235 if (playCounter != -1)-
236 playCounter--;-
237 nextFrameNumber = 0;-
238 return next();-
239 }-
240-
241 return false;-
242 }-
243-
244 currentFrameNumber = nextFrameNumber++;-
245 QSize scaledSize = reader->scaledSize();-
246 if (scaledSize.isValid() && (scaledSize != info.pixmap.size()))-
247 currentPixmap = QPixmap::fromImage( info.pixmap.toImage().scaled(scaledSize) );-
248 else-
249 currentPixmap = info.pixmap;-
250 nextDelay = speedAdjustedDelay(info.delay);-
251-
252 int processingTime = time.elapsed();-
253 if (processingTime > nextDelay)-
254 nextDelay = 0;-
255 else-
256 nextDelay = nextDelay - processingTime;-
257 return true;-
258}-
259-
260-
261-
262void QMoviePrivate::_q_loadNextFrame()-
263{-
264 _q_loadNextFrame(false);-
265}-
266-
267void QMoviePrivate::_q_loadNextFrame(bool starting)-
268{-
269 QMovie * const q = q_func();-
270 if (next()) {-
271 if (starting && movieState == QMovie::NotRunning) {-
272 enterState(QMovie::Running);-
273 q->started();-
274 }-
275-
276 if (frameRect.size() != currentPixmap.rect().size()) {-
277 frameRect = currentPixmap.rect();-
278 q->resized(frameRect.size());-
279 }-
280-
281 q->updated(frameRect);-
282 q->frameChanged(currentFrameNumber);-
283-
284 if (movieState == QMovie::Running)-
285 nextImageTimer.start(nextDelay);-
286 } else {-
287-
288 if (!isDone()) {-
289 q->error(reader->error());-
290 }-
291-
292-
293 if (movieState != QMovie::Paused) {-
294 nextFrameNumber = 0;-
295 isFirstIteration = true;-
296 playCounter = -1;-
297 enterState(QMovie::NotRunning);-
298 q->finished();-
299 }-
300 }-
301}-
302-
303-
304-
305-
306bool QMoviePrivate::isValid() const-
307{-
308 return (greatestFrameNumber >= 0)-
309 || reader->canRead();-
310}-
311-
312-
313-
314-
315bool QMoviePrivate::jumpToFrame(int frameNumber)-
316{-
317 if (frameNumber < 0)-
318 return false;-
319 if (currentFrameNumber == frameNumber)-
320 return true;-
321 nextFrameNumber = frameNumber;-
322 if (movieState == QMovie::Running)-
323 nextImageTimer.stop();-
324 _q_loadNextFrame();-
325 return (nextFrameNumber == currentFrameNumber+1);-
326}-
327-
328-
329-
330-
331int QMoviePrivate::frameCount() const-
332{-
333 int result;-
334 if ((result = reader->imageCount()) != 0)-
335 return result;-
336 if (haveReadAll)-
337 return greatestFrameNumber+1;-
338 return 0;-
339}-
340-
341-
342-
343-
344bool QMoviePrivate::jumpToNextFrame()-
345{-
346 return jumpToFrame(currentFrameNumber+1);-
347}-
348-
349-
350-
351-
352-
353-
354-
355QMovie::QMovie(QObject *parent)-
356 : QObject(*new QMoviePrivate(this), parent)-
357{-
358 QMoviePrivate * const d = d_func();-
359 d->reader = new QImageReader;-
360 connect(&d->nextImageTimer, qFlagLocation("2""timeout()" "\0" __FILE__ ":" "574""580"), this, qFlagLocation("1""_q_loadNextFrame()" "\0" __FILE__ ":" "574""580"));-
361}-
362QMovie::QMovie(QIODevice *device, const QByteArray &format, QObject *parent)-
363 : QObject(*new QMoviePrivate(this), parent)-
364{-
365 QMoviePrivate * const d = d_func();-
366 d->reader = new QImageReader(device, format);-
367 d->initialDevicePos = device->pos();-
368 connect(&d->nextImageTimer, qFlagLocation("2""timeout()" "\0" __FILE__ ":" "591""597"), this, qFlagLocation("1""_q_loadNextFrame()" "\0" __FILE__ ":" "591""597"));-
369}-
370QMovie::QMovie(const QString &fileName, const QByteArray &format, QObject *parent)-
371 : QObject(*new QMoviePrivate(this), parent)-
372{-
373 QMoviePrivate * const d = d_func();-
374 d->absoluteFilePath = QDir(fileName).absolutePath();-
375 d->reader = new QImageReader(fileName, format);-
376 if (d->reader->device())-
377 d->initialDevicePos = d->reader->device()->pos();-
378 connect(&d->nextImageTimer, qFlagLocation("2""timeout()" "\0" __FILE__ ":" "610""616"), this, qFlagLocation("1""_q_loadNextFrame()" "\0" __FILE__ ":" "610""616"));-
379}-
380-
381-
382-
383-
384QMovie::~QMovie()-
385{-
386 QMoviePrivate * const d = d_func();-
387 delete d->reader;-
388}-
389-
390-
391-
392-
393-
394-
395-
396void QMovie::setDevice(QIODevice *device)-
397{-
398 QMoviePrivate * const d = d_func();-
399 d->reader->setDevice(device);-
400 d->reset();-
401}-
402-
403-
404-
405-
406-
407-
408-
409QIODevice *QMovie::device() const-
410{-
411 const QMoviePrivate * const d = d_func();-
412 return d->reader->device();-
413}-
414-
415-
416-
417-
418-
419-
420-
421void QMovie::setFileName(const QString &fileName)-
422{-
423 QMoviePrivate * const d = d_func();-
424 d->absoluteFilePath = QDir(fileName).absolutePath();-
425 d->reader->setFileName(fileName);-
426 d->reset();-
427}-
428QString QMovie::fileName() const-
429{-
430 const QMoviePrivate * const d = d_func();-
431 return d->reader->fileName();-
432}-
433void QMovie::setFormat(const QByteArray &format)-
434{-
435 QMoviePrivate * const d = d_func();-
436 d->reader->setFormat(format);-
437}-
438-
439-
440-
441-
442-
443-
444-
445QByteArray QMovie::format() const-
446{-
447 const QMoviePrivate * const d = d_func();-
448 return d->reader->format();-
449}-
450-
451-
452-
453-
454-
455-
456-
457void QMovie::setBackgroundColor(const QColor &color)-
458{-
459 QMoviePrivate * const d = d_func();-
460 d->reader->setBackgroundColor(color);-
461}-
462-
463-
464-
465-
466-
467-
468-
469QColor QMovie::backgroundColor() const-
470{-
471 const QMoviePrivate * const d = d_func();-
472 return d->reader->backgroundColor();-
473}-
474-
475-
476-
477-
478-
479-
480QMovie::MovieState QMovie::state() const-
481{-
482 const QMoviePrivate * const d = d_func();-
483 return d->movieState;-
484}-
485-
486-
487-
488-
489-
490-
491-
492QRect QMovie::frameRect() const-
493{-
494 const QMoviePrivate * const d = d_func();-
495 return d->frameRect;-
496}-
497-
498-
499-
500-
501-
502-
503QPixmap QMovie::currentPixmap() const-
504{-
505 const QMoviePrivate * const d = d_func();-
506 return d->currentPixmap;-
507}-
508-
509-
510-
511-
512-
513-
514QImage QMovie::currentImage() const-
515{-
516 const QMoviePrivate * const d = d_func();-
517 return d->currentPixmap.toImage();-
518}-
519-
520-
521-
522-
523-
524bool QMovie::isValid() const-
525{-
526 const QMoviePrivate * const d = d_func();-
527 return d->isValid();-
528}-
529-
530-
531-
532-
533-
534-
535-
536int QMovie::frameCount() const-
537{-
538 const QMoviePrivate * const d = d_func();-
539 return d->frameCount();-
540}-
541-
542-
543-
544-
545-
546int QMovie::nextFrameDelay() const-
547{-
548 const QMoviePrivate * const d = d_func();-
549 return d->nextDelay;-
550}-
551-
552-
553-
554-
555-
556int QMovie::currentFrameNumber() const-
557{-
558 const QMoviePrivate * const d = d_func();-
559 return d->currentFrameNumber;-
560}-
561-
562-
563-
564-
565bool QMovie::jumpToNextFrame()-
566{-
567 QMoviePrivate * const d = d_func();-
568 return d->jumpToNextFrame();-
569}-
570-
571-
572-
573-
574-
575bool QMovie::jumpToFrame(int frameNumber)-
576{-
577 QMoviePrivate * const d = d_func();-
578 return d->jumpToFrame(frameNumber);-
579}-
580int QMovie::loopCount() const-
581{-
582 const QMoviePrivate * const d = d_func();-
583 return d->reader->loopCount();-
584}-
585void QMovie::setPaused(bool paused)-
586{-
587 QMoviePrivate * const d = d_func();-
588 if (paused) {-
589 if (d->movieState == NotRunning)-
590 return;-
591 d->enterState(Paused);-
592 d->nextImageTimer.stop();-
593 } else {-
594 if (d->movieState == Running)-
595 return;-
596 d->enterState(Running);-
597 d->nextImageTimer.start(nextFrameDelay());-
598 }-
599}-
600void QMovie::setSpeed(int percentSpeed)-
601{-
602 QMoviePrivate * const d = d_func();-
603 d->speed = percentSpeed;-
604}-
605-
606int QMovie::speed() const-
607{-
608 const QMoviePrivate * const d = d_func();-
609 return d->speed;-
610}-
611void QMovie::start()-
612{-
613 QMoviePrivate * const d = d_func();-
614 if (d->movieState == NotRunning) {-
615 d->_q_loadNextFrame(true);-
616 } else if (d->movieState == Paused) {-
617 setPaused(false);-
618 }-
619}-
620void QMovie::stop()-
621{-
622 QMoviePrivate * const d = d_func();-
623 if (d->movieState == NotRunning)-
624 return;-
625 d->enterState(NotRunning);-
626 d->nextImageTimer.stop();-
627 d->nextFrameNumber = 0;-
628}-
629QSize QMovie::scaledSize()-
630{-
631 QMoviePrivate * const d = d_func();-
632 return d->reader->scaledSize();-
633}-
634void QMovie::setScaledSize(const QSize &size)-
635{-
636 QMoviePrivate * const d = d_func();-
637 d->reader->setScaledSize(size);-
638}-
639QList<QByteArray> QMovie::supportedFormats()-
640{-
641 QList<QByteArray> list = QImageReader::supportedImageFormats();-
642-
643 QMutableListIterator<QByteArray> it(list);QBuffer buffer;-
644 buffer.open(QIODevice::ReadOnly);-
645-
646 while (it.hasNext())const auto doesntSupportAnimation =-
647 [&buffer](const QByteArray &format) {-
648 return
never executed: return !QImageReader(&buffer, format).supportsAnimation();
never executed: return !QImageReader(&buffer, format).supportsAnimation();
 !QImageReaderreader(&buffer, itformat).supportsAnimation();
never executed: return !QImageReader(&buffer, format).supportsAnimation();
0
649 };-
650-
651 list.next());-
if (!readererase(std::remove_if(list.supportsAnimation())
itbegin(), list.remove();
}end(), doesntSupportAnimation), list.end());
652 return
never executed: return list;
 list;
never executed: return list;
0
653}-
654QMovie::CacheMode QMovie::cacheMode() const-
655{-
656 const QMoviePrivate * const d = d_func();-
657 return d->cacheMode;-
658}-
659-
660void QMovie::setCacheMode(CacheMode cacheMode)-
661{-
662 QMoviePrivate * const d = d_func();-
663 d->cacheMode = cacheMode;-
664}-
665-
666-
667-
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